Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quantos estudos e pesquisas foram realizados na região antártica?
 ###Tabelas: 
CREATE TABLE studies (id INT PRIMARY KEY, title VARCHAR(50), description TEXT, start_date DATE, end_date DATE, researcher_id INT); INSERT INTO studies (id, title, description, start_date, end_date, researcher_id) VALUES (1, 'Impact of Climate Change on Polar Bears', 'Study of polar bear populations and their response to climate change', '2010-01-01', '2011-12-31', 1); INSERT INTO studies (id, title, description, start_date, end_date, researcher_id) VALUES (2, 'Resource Management in the Arctic', 'Study of resource management practices and their impact on the environment', '2012-01-01', '2013-12-31', 2); CREATE TABLE surveys (id INT PRIMARY KEY, title VARCHAR(50), description TEXT, start_date DATE, end_date DATE, community_id INT); INSERT INTO surveys (id, title, description, start_date, end_date, community_id) VALUES (1, 'Community Perspectives on Climate Change', 'Survey of community perspectives on climate change and its impact on their lives', '2010-01-01', '2010-12-31', 1); INSERT INTO surveys (id, title, description, start_date, end_date, community_id) VALUES (2, 'Assessment of Biodiversity in the Arctic', 'Survey of biodiversity in the Arctic and its impact on the environment', '2012-01-01', '2012-12-31', 2);
SELECT COUNT(*) FROM studies WHERE location = 'Antarctic' UNION ALL SELECT COUNT(*) FROM surveys WHERE location = 'Antarctic';